Car dumping mechanism



D66. 26, A c SCHMQHL CAR DUMPING MECHANISM Filed May 8, 1931 2 Sheets-Sheet l ha ATTORNEY Dec. 26, 1933. A. c SCHMOHL 1,940,732

CAR DUMPING MECHANISM Filed May 8, 1931 2 Sheets-Sheet 2 INVENTORa/QJM Patented Dec. 26, 1933 UNi Fries 1,940,732 can nUMPiNo MECHANISM Alfred C. Schmohl, Beaver Falls, Pa, assignor, by mesne assignments, to Koppel Industrial Car and Equipment Company, McKees Rocks,

.'Pa., a corporation of Pennsylvania 3 Application May 8, 1931. Serial No. 535,891

' 8 Claims. (01. 214-64) My invention pertains to cars of the type known as quarry cars which have thebody tiltably mounted on the underfrarne but no provisions for tilting the car body. It is to be understood, however, that my invention can be used equallyas well with cars of any type in which the body is tiltably mounted and the doors may be of the type known as lift doors which move upwardly and outwardly away from the car body .as the body is tilted'or with carshaving the doors pivotally mounted adjacent the floor of body and opening downwardly and outwardly to form aprons to discharge the lading away from the sides of the track upon which the car is mounted. An object of my invention is to provide a means for tilting the body of a dump car, said means being fixed adjacent one side of the track upon which the carsare mounted and to which the cars are moved for dumping.

Another object of my invention is to provide a dumping mechanism which will maintain control of the body throughout the entire dumping and righting movements thereof and which,

when in idle position, is free of the body of the car.

Referring now to the drawings, Fig. 1 shows in elevation a preferred embodimentof my invention; Fig. 2 shows in elevation the position of the mechanism when the car body is moved to fully tilted position; Fig. 3 is a sectiontaken along the lines 33 of Fig. 1. v

Referring now in detail to the drawings, reference character 1 indicates a dumping mechanism mounted adjacent one side of a track-2 on which is mounted a dump car having a til-tably mounted body 3.

The dumping mechanism comprises a-supporting frame 4 preferably formed of structural steel shapes 'for greater durability and strength' Mounted on trunnions 5 and supported between the members 6 of the frame work isa body;

actuating member '7 comprising a reciprocating member 8 mounted within a cylinder 9 and actuated therein by fluid pressure. One end of member 8 has a suitably shaped end portionic for engagement with a convenient portion of the car body such as 11. Flexibly connected tc-iihe cylinder 9 is a suitable source of supply of iiuidunder pressure for actuating the member 8, which sourceof supply forms no part of my invention and is not shown in the drawings.

away from the cylinder 9 intothe position shown in dot and dash lines of. Fig. 1 of the drawings for a purpose which will be described as the specification proceeds. -This member 12 preferably comprises a suitablyshaped casing within which is mounted the buffing member 151, which is resiliently urged outwardly by a spring Referring to Figs. '1 and 2 of thedrawings, it will be noted that the arrangement of the members 9 and 12 is such that when the. member 12.is movedtc idle position, as shown in dot and dash lines of Fig. 1, the cylinder 9, by reason of its weight, would assume avertical position as indicated in dot and dash lines and provide greater clearance between the mechanism and the car mounted on the adjacent track. When the member 12 is moved into the position shown in full lines of Fig.1, the member 14% holds the cylinder 9 in a' position. such that the upward movement of the member 8 within the cylinder 9 will cause the portion 1% to engage with the bearing 11 of the car body. When the body has been. moved to fully tilted position and thecylinder 9 in the position shown on Fig. 2 of the drawings, the cylinder has moved out of engagement with the member 14 and upon return of the body to a horizontal position, the member 14 engages with the cylinder 9 and acts as a buffer and stop. The resilient member 15 within the member 12 absorbing any shocks caused by the engagement .means is provided by the latch member 16 which isrnounted on the portion 10 of the member 8 andwhich is'adapted to engage with the car body and secure the member 8 thereto. One means or" operatin this latch member is shown in the drawings in the form of a' counterweight 17 mounted on the support 4 and connected to the latch member 16 by means of the flexible chain or rope 18. It will be observed that as the body actuating member 8 of the dumping mechanism moves upwardly to tilt the body to discharge the lading, the counterweight 1'. is moved upwardly by means of the connecting member 18 and in so doing causes the latch member 16 to rotate on its pivot 19 and to engage with the portion 11 of the car body as shown in Fig. 2 of the drawings. As the arrangement of the counterweight 17 and cylinder 9 is such that the counterweight does not come to rest on its base 21 of the frame work until the body has completed its return movement, the latch 18 will be held into engagement with the member 11 throughout the entire tilting and righting movements of the car body. In order to provide for the separation of the body tilting member and car body after the righting of the car body, a tension spring 20 or any other suitable means is connected to the latch 16 and member 8 so that when the latch is free of the weight of the member 17, the member 20 rotates the latch into a position free of the member 11.

Referring to Fig. 2 of the drawings it will be noted that when the arm of the dumping mechanism is fully extended it is above the antifriction device overwhich the flexible chain or rope 18 is passed to engage with the counterweight. If desired, this counterweight can be made of surficient size so that upon exhausting the pressure from the cylinder 9 it will assist in the return of the member 8 and provide for the righting of the car body.

With some types of cars, the body, after the discharging of the lading and the reduction of pressure within the cylinder 9, would automatically right itself and in so doing, return the member 8 from the position shown in Fig. 2 to that shown in "Fig. 1. When, however, the construction of the body is such that it will not automatically right itself reason of its own weight and the large sized counterweight is ineffective or undesirable, the member 8 can be moved inwardly of the cylinder 9 under fluid pressure. In order to do this a pressure line can be attached to the upper end of the cylinder and a suitable valve provided to direct the flow of pressure into the cylinder.

Having thus described the invention what I claim as new and desire to secure by Letters Patent is:

' 1. In a dumping mechanism for a car having a tiltable body, a fluid pressure actuated body tilting member, means for maintaining said member in position to engage with said body and means operatively associated with said member to maintain said member and body in engagement throughout the entire dumping and righting movements of said body.

2. In a dumping mechanism for a car having a tiltably mounted body, a fluid pressure actuated body tilting member mounted adjacent one side of said car and out of engagement therewith, means on said member for engaging with said body, and resilient means independent of the car for'guiding said member into engagement with said body.

3. In a dumping mechanism for a car having a tiltably'mounted body, a body tilting member, said member being contained within a cylinder mounted on trunnions adjacent one side of said car,

and actuated by fluid pressure so as to have a reciprocating movement within said cylinder, a member mounted on said body tilting member and actuated by the movement thereof to automatically secure said body tilting member to said car body throughout the entire tilting and righting movements of the body.

4. In a dumping mechanism for cars having tiltably mounted bodies and without self contained means for actuating said bodies, said device being positioned adjacent one side of the tracks upon which said cars are mounted and comprising a fluid pressure actuated body tilting member contained within a cylinder mounted on trunnion so as to provide a limited rotation in a direction transversely of the car, a member for selectively moving said cylinder and body tilting member into operative position and a member operatively associated with said body tilting member and controlled by the movements thereof to maintain said body tilting member and car body in engagement while the car body is out of normal 7 load carrying position. a

5. In a dumping mechanism for cars having tiltably mounted bodies but no means for actuating same, said device being positioned to one side of the tracks upon which the cars are mounted and normally free of said cars, said device comprising a body actuating member contained within a cy inder mounted on trunnions to permit lited rotation thereof, said member having a reciprocating movement within said cylinder and under fluid pressure, a suitably shaped end portion on said memberto engage said bodyas the member moves upwardly towards the body, a latch member mounted on said end portion and adapt ed to securesaid actuating member and car body engagement and a counterweight secured to said latch member for operating said latch member by movement of said body actuating member.

6. In a dumping mechanism for cars having tiltably mounted bodies but no means for actuating same, said mechanism being positioned to one side of the tracks on which the cars are mounted and normally free of said cars and comprising a cylinder mounted on trunnions adjacent said tracks, a body actuating member mounted in said cylinder and adapted to move outwardly and upwardly to efifect the tilting of the body of said car, a latch member mounted on'said body actuating member to secure said member and car body in engagement throughout the dumping and righting movements of said body, and gravity ctuated means operatively associated with'said body actuating member and latch for controlling the movements thereof. 7

7. In a dumping mechanism for cars having ti able bodies and without self-contained means "for tilting the body in combination, a fluid-pressure actuated member contained withina cylinder mounted free of the car adjacent one side thereof, resilient means operatively connected with said cylinder for guiding said member during the tilting of said car body and means oneratively associated with said member and actuated by the movement thereof to retain said member in engagement with said body throughout the tilting and righting movements thereof;

8. In a dumping mechanism for cars having tiltably mounted bodies and without self-contained' means for actuating said bodies, said mechanism being positioned adjacent one side of the tracks from which the cars are mounted and comprising a cylinder mounted on trunnions, a reciprocating member within said cylinder and resilient means associated with said cylinder maintaining the portion of the reciprocating member in engagement with the body and the cylinder trunnions, in alignment throughout the tilting movement of the car body.

ALFRED C. SCHMOHL. 

